HTW IX21D5 Serie Manuel D'installation page 78

INSTALLATION MANUAL
6. REFRIGERANT PIPING CONNECTION
INSTRUCTIONS FOR CONNECTING PIPING TO OUTDOOR UNIT
1. Unscrew the cover from the packed valve on the side of the outdoor unit (see Fig. 5.9)
Fig. 5.9
2. Remove protective caps from ends of valves.
3. Align flared pipe end with each valve, and tighten the flare nut as tightly as possible by hand.
4. Using a spanner, grip the body of the valve. Do not grip the nut that seals the service valve. (See Fig.
5.10)
USE THE SPANNER TO GRIP THE MAIN BODY OF THE VALVE
Torque from tightening the flare nut can snap off other parts of valve.
Fig. 5.10
5. While firmly gripping the body of the valve, use a torque wrench to tighten the flare nut according to the
correct torque values.
6. Loosen the flaring nut slightly, then tighten again.
7. Repeat Steps 3 to 6 for the remaining pipe.
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Valve
cover
SPLIT 1X1 IX21D5